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v3.23.2

Fair Value Measurements (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
6.7% Senior Notes | UScellular |  |
Financial Instruments |  |
Interest rate | 6.70% |
Book Value | Retail |  |
Financial Instruments |  |
Long-term debt | $ 1,500 | $ 1,500
Book Value | Institutional |  |
Financial Instruments |  |
Long-term debt | 536 | 536
Book Value | Other |  |
Financial Instruments |  |
Long-term debt | 1,931 | 1,753
Fair Value | Level 2 | Retail |  |
Financial Instruments |  |
Long-term debt | 917 | 899
Fair Value | Level 2 | Institutional |  |
Financial Instruments |  |
Long-term debt | 381 | 395
Fair Value | Level 2 | Other |  |
Financial Instruments |  |
Long-term debt | $ 1,931 | $ 1,753
Interest rate | Institutional and Other | Minimum |  |
Financial Instruments |  |
Fair value assumption, interest rate | 3.52% | 3.52%
Interest rate | Institutional and Other | Maximum |  |
Financial Instruments |  |
Fair value assumption, interest rate | 8.77% | 8.28%

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